Guide-bracket for detector-bars.



E. .W. VOGEL.

GUIDE BRACKET FOR DETECTOR BARS..

APPLICATION men OCT. 5, i916.

1 ,229 8. Patented June 12, 1917.

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EUGENE W. VOGEL, 01? OAK PARK, ILLINOIS, ASSIGNOR T0 CHICAGO RAILWAYSIGNAL & SUPPLY COMPANY, OF CABPENTERSVILLE, ILLINOIS, A CORPORATION OFILLINOIS.

GUIDE-BRACKET FOR DETECTOR-BARS.

1 Application filed October 5, 1916.

To all whom it may concern:

Be it known that I, EUGENE W. VooEL, citizen of the United States,residing at Oak Park, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Guide-Brackets forDetector-Bars, of which the following is a specification.

My invention relates to detector bars employed in connection withrailroad switches for the purpose of preventing such switches from beinginadvertently thrown at im proper times, for example, when a train ispassing over the switc The invention has reference more particularly toa detector bar of the type employing a cam or plate with an inclinedlower edge for raising the bar above the top of the rail, when the baris moved longitudinally, and the object of the invention is to providean improved guide bracket or clip adapted to be attached to the rail andprovided with a roller over which the cam plate 011 the detector barrides when the bar is moved. The guide bracket of my invention issuperior to devices of this type now in use in that friction isminimized, clogging of the roller avoided, and lubrication madeconvenient and easy. The construction also has the advantage that theroller is capable of being readily removed from the bracket when wornand requiring replacement. The device is also strong, durable andinexpensive to manufacture.

The invention is illustrated, in a preferred embodiment, in theaccompanying drawing wherein Figure 1 is a side elevation of a railprovided with a detector bar and with the guide bracket of my invention.

Fig. 2 is a sectional view on line 22 of Fig. 1.

Corresponding parts are designated by the same reference characters inboth figures.

bar, and C one of the cam plates secured to the bar, for example, byrivets D. The cam plate is formed with inclined lower edges E. I

The detector bar is supported and guided in a position alongside of therail by a guide bracket which may be clipped to the base of the rail ormay be bolted through the vertical web thereof. I have shown theSpecification of Letters Patent.

The rail is shown at A. B is thedetector' Patented June I2, 191?].

Serial No. 123,806.

bracket, designatedas a whole by the letter F, as clipped to the base ofthe rail but provided with bolt holes so that if desired it may bebolted to the web. The

guide bracket comprises a base portion Gr which lies upon the baseflange H of the rail and is provided with a jaw I extend-- ing aroundand under one edge of the base flange through which extend bolts Jthreaded at one end for nuts K and formed at their opposite extremitieswith hooks L extending around the opposite edge of the base flange ofthe'rail from that engaged by jaw I. .Extending upwardly from the lowerportion of the head Q, of the rail.

At the outer edge of the base portion G is an upstanding web R formedwith a lip S which lies close to the cam plate C of the detector bar B.T is a roller formed with gudgeons U of considerably smallerdiameterthan the roller. The roller gudgeons extend in and find hearingsin the bottom of slots V, W, slot V being formed in web R and slot W ina projection X on web M.

WVhen the detector bar is moved longitudinally from right to left, Fig.1, the cam surface E adjacent the roller rides up on i the roller,raising the detector bar to the dotted lineposition of Fig. 2. Theroller isstronger, more durable and moves with less friction than thecorresponding element in constructions employing a bolt and sleeve tosupport the detector bar in the bracket. Moreover, the gudgeons orjournals of the roller are easily lubricated. By raising the detectorbar the roller may be removed from' the bracket if occasion require it.

bar and cam plate secured to the bar, of a roller to support the bar andcooperate with the cam plate to raise the bar when moved longitudinally,which roller is provided at opposite ends with integrally formedjournals of smaller diameter than the roller, and a guide bracketprovided with means for attaching it to the rail and formed withoppositely arranged upstanding webs slotted to provide bearings for theroller journals, permitting the roller to be removed from the bracketwhen the detector bar is raised.

3. The combination with a rail detector bar and cam plate secured to thebar, of a guide bracket for the bar adapted to be secured to the railand comprising a base portion, a web which lies alongside of thevertical web of the rail and is provided withan outward projectionformed with a bearlng recess open at the top, and an upstand- 111g webtermmatmg 1n a gulde 11p extending close to the cam plate of thedetector bar and formed with a bearing recess, and a roller to cooperatewith said cam plate formed with integral journals, of smaller diameterthan the roller, adapted to extend into the aforesaid bearing recesses.

4. The combination with a rail detector bar and cam plate secured to thebar, of a guide bracket for the bar comprising a base portion, a jawadapted to fit over one edge of the rail base, a web which liesalongside of the vertical web of the rail and adapted to be securedthereto and formed with an outward projection formed with a bearingrecess open at the top, and an upstanding web terminating in a guide lipextending close to the cam plate of the detector bar and formed with abearing recess, and a roller to cooperate with said cam plate formedwith integral journals adapted to extend into the aforesaid bearingrecesses.

EUGENE W. VOGEL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0."

